import csv
import pandas as pd

def save_csv(lists, path):
    with open(path, 'w', newline='') as file:
        writer = csv.writer(file)
        writer.writerow([0,0,0])
        for row in lists:
            writer.writerow(row)


a = [1.12,2.12,3.12]
file_name = 'test.csv'
with open(file_name, 'w', newline='') as file:
    writer = csv.writer(file)
    writer.writerow(a)

file = pd.read_csv(file_name)
data = file.values.tolist()
print('data = ', file)